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All Journal Bioscience Jurnal Pendidikan Biologi Jurnal Penelitian Pendidikan IPA (JPPIPA) Martabe : Jurnal Pengabdian Kepada Masyarakat Edumaspul: Jurnal Pendidikan Eksakta : Berkala Ilmiah Bidang MIPA Pelita Eksakta Jurnal Metaedukasi : Jurnal Ilmiah Pendidikan Symbiotic: Journal of Biological Education and Science Jurnal Serambi Biologi
Violita Violita
Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Journal : Eksakta : Berkala Ilmiah Bidang MIPA

 1 
Antimicrobial Activities of Extract of Andalas Endophytic Bacterial Fermentation Products in Overcoming Oral Cavity Infection Dwi Hilda Putri; Ratih Rahayu; Dinda Sahara; Nurhelmi Nurhelmi; Violita Violita
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 20 No. 2 (2019): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (859.138 KB) | DOI: 10.24036/eksakta/vol20-iss2/181

Abstract

Dental and oral infection problems can be overcome using natural antimicrobial compounds from bacterial endophytic resulted from bacterial fermentation. This study aims to determine the effectiveness of extracts of Andalas endophytic bacterial fermentation products in treating oral cavity infections. Fermentation products was extracted using maceration methods. Antimicrobial activity of Andalas endophytic bacterial fermentation product was evaluated to S. mutans and C. albicans by disk diffusion method. The study showed that the optimum concentration of extract in inhibiting microbial growth that causes oral cavity infections was at 12.5%.
Leaf Anatomical Modification in Drought of Rice Varieties (Oryza sativa L.) Anggara Dwi Putra Zagoto; Violita Violita
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 20 No. 2 (2019): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1025.416 KB) | DOI: 10.24036/eksakta/vol20-iss2/201

Abstract

Each organ plant has been formed perfectly to support physiological processes in an unfavorable environmental condition. Rice (Oryza sativa L.) be included plants sensitive to drought conditions during a stage of growth and development. This will cause pressure (stress) resulting in a decrease in rate metabolism in leaf cells. Leaf anatomical characteristics are criteria that can be used to identify plants that are tolerant to drought. Anatomical response leaves in drought conditions inform the development of leaf photosynthetic parts carrying out changes in anatomical structure morphology includes changes in cell walls, organ size, changes in direction growth, including dropping leaves and enhancing the life cycle. The research aimed to determine the anatomic response leaves rice varieties (Oryza sativa L.) to drought stress. Five rice varieties used were given drought-stress treatment for 12 days. Identification leaf anatomical structures using microscopic slices of transverse was made according to the paraffin method. Changes in the anatomical structure of leaves of drought-stress have decreased bulliform cells increase in size, the thickness epidermis cells in an effort to retain the water content in cells, and reducing the size and total stomata with purpose process control flow of transpiration and water use efficiency.
Co-Authors Abdul Razak Achyar, Afifatul Ahmad Subari Al Adawiyah Anggara Dwi Putra Zagoto Atifah, Yusni Ayu Adelia Azwir Anhar Celsi Ananda Des Des M Dezi Handayani Dinda Sahara Dwi Hilda Putri Elsa Sri Handayani Eria Marina Sepriyani Fevria, Resti Fika Faradhila Helsa Rahmatika Heron Tarigan Irdawati Irdawati Irma Leilani Eka Putri Jalilah Azizah Jumatul Hafsah Leilani Eka Putri Linda Advinda Lufri Lufri Marsha Utami Milka Saputri Moralita Chatri Muhamad Sholichin Nanta Mulia Nelfia Pitri Nella Fauziah Nofi Yendri Sudiar Nurhelmi Nurhelmi Nurul Rahmi Olan Tri Sinaga Putri Widianti Ratih Rahayu Refni Syahleli Afni Resti Pevria Restu Fitriani Rijal Satria Sintia Putri Sri Rahmadani Fitri Syamsurizal S Syifa Fajrisani Tomi Apra Santosa Santosa Yolanda Karinia Yosefin Nisa Aulia Yulkifli Yulkifli Zulyusri, Zulyusri